The Magazine Mass Marketing Conpany has received 12 entries in its latest sweeps

Question

The Magazine Mass Marketing Conpany has received 12 entries in its latest sweepstakes. They know that the probability of receiving a magazine subscription order with an entry form is 0.4. What is the probability that no more than 8 of the entry forms will include an order? Round your answer to four decimal places. The Magazine Mass Marketing Conpany has received 12 entries in its latest sweepstakes. They know that the probability of receiving a magazine subscription order with an entry form is 0.4. What is the probability that no more than 8 of the entry forms will include an order? Round your answer to four decimal places.

Explanation / Answer

no of orders = 12

probability of receiving a magazine subscription order with an entry form is 0.4

probability that no more than 8 of the entry forms will include an order = 1-P(9)-P(10)-P(11)-P(12)

= 1- (12C9)*(0.4)9(0.6)3 - (12C10)(0.4)10(0.6)2 -(12)(0.4)11(0.6)1-(0.4)12

=0.9847

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